Antenna



FIG. 1 is a front, left side, bottom perspective view of an antenna showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a cross-sectional view thereof, taken in the direction of line 8-8 of FIG. 5; and,

FIG. 9 is a cross-sectional view thereof, taken in the direction of line 9-9 of FIG. 5.

The portions depicted by broken lines are for illustrative purpose only and form no part of the claimed design.

The long and short dashed lines illustrate a boundary of claimed design and unclaimed ones. 

CLAIM The ornamental design for an antenna, as shown and described. 